[Facebook-iOS-SDK 4.0]如何从FBSDKProfile获取用户电子邮件地址 [英] [Facebook-iOS-SDK 4.0]How to get user email address from FBSDKProfile

问题描述

我正在将我的应用升级到 Facebook-iOS-SDK-4.0 ，但似乎无法从FBSDKProfile接收用户电子邮件，因为它仅提供用户名，用户名等

I'm upgrading my app to Facebook-iOS-SDK-4.0, but seems like I can't get user email from FBSDKProfile, since it only provide, username, userid, etc.

推荐答案

要获取电子邮件，您需要使用图形API，特别是要提供填充有所需字段的parameter字段.看一下Facebook的Graph API探索工具，它可以帮助找出查询. https://developers.facebook.com/tools/explorer

To fetch email you need to utilize the graph API, specifically providing the parameters field populated with the fields you want. Take a look at Facebook's Graph API explore tool, which can help to figure out the queries. https://developers.facebook.com/tools/explorer

以下用于我获取电子邮件的代码如下，假定您已经登录:

The code that worked for me to fetch email is the following, which assumes you are already logged in:

    NSMutableDictionary* parameters = [NSMutableDictionary dictionary];
    [parameters setValue:@"id,name,email" forKey:@"fields"];

    [[[FBSDKGraphRequest alloc] initWithGraphPath:@"me" parameters:parameters]
     startWithCompletionHandler:^(FBSDKGraphRequestConnection *connection,
                                  id result, NSError *error) {
         aHandler(result, error);
     }];

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